AUTOMATIC LIGHT CONTROL SENSOR ON-VEHICLE INSPECTION


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. A01BBXJ

      Measure the resistance and voltage according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition
      3 - Body ground Always Below 1 Ω
      Voltage
      Tester connection Condition Specified condition
      1 - 3 Always 10 to 14 V
      4 - 3 Ignition switch ON, Headlight dimmer switch in AUTO

      Pulse generation

      (See waveform 1)

      If the result is not as specified, the automatic light control sensor may have a malfunction.


      1. A01BDLOE01

        Waveform 1

        Item Description
        Terminal CLTS (4) - CLTE (3)
        Gauge 5 V/DIV, 5 ms/DIV
        Condition Ignition switch ON, Headlight dimmer switch in AUTO

        Tech Tips

        If the ambient light becomes brighter, width A becomes narrower.